122586-54-3Relevant academic research and scientific papers
Transition-metal-catalyzed process for the preparation of sterically hindered N-substituted alkoxy amines
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, (2008/06/13)
Sterically hindered N-substituted alkoxyamines are prepared by the transition-metal-catalyzed decomposition of diazonium salts in the presence of a sterically hindered nitroxyl radical. These compounds are useful as thermal and light stabilizers for a variety of organic substrates.
Transition-metal-catalyzed process for the preparation of sterically hindered N-substituted aryloxyamines
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, (2008/06/13)
Sterically hindered N-substituted aryloxyamines are prepared by the transition-metal-catalyzed decomposition of diazonium salts in the presence of a sterically hindered nitroxyl radical. These compounds are useful as thermal and light stabilizers for a variety of organic substrates.
Bloom-resistant benzotriazole UV absorbers and compositions stabilized therewith
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, (2008/06/13)
Benzotriazole UV absorbers substituted with an ultra long ester or amide moiety wherein the ester or amide group is a hydrocarbyl group of 25 to 100 carbon atoms or is a group of alkyl of 25 to 100 carbon atoms interrupted by 5 to 39 oxygen atoms and terminated with an omega—OH or an omega—OR group exhibit excellent stabilization efficacy while they concomitantly do not bloom when incorporated into polyolefin films. These benzotriazole UV absorbers also provide excellent protection to white, dyed, dipped, unscented and/or scented candle wax from discoloration and degradation.
O-substituted N-hydroxy hindered amine stabilizers
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, (2008/06/13)
Hindered amines based on various 2,2,6,6-tetraalkylated nitrogen-containing heterocyclic moieties wherein the hindered nitrogen atom on the ring is substituted with OR1 substituents and the 4-position of the ring is substituted with a variety of groups, are effective as light stabilizers in diverse substrate systems.
Process for preparing N-hydrocarbyloxy derivatives of sterically hindered amines
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, (2008/06/13)
N-hydrocarbyloxy compounds of the formula STR1 where E1, E2, E3 and E4 are independently an organic radical so that the carbon atoms to which they are attached are each a quaternary carbon, R is a hydrocarbon ra
